The
speed that computer can send data to other devices is very important.
Each year, software and backups for many consumers and businesses
grow in size and the huge amount of HD media consumed expands as
well. With the increased file sizes being streamed to external
devices and sent to external storage, faster connectivity options are
needed.

The first step in faster communications between a
computer and external devices is USB 3.0. This faster port is still
not widespread in machines today because there are no motherboard
chipsets with USB 3.0 integrated – motherboards that do support 3.0
use costly add-in chips. There are a number of add-in
cards and adapters available that let manufacturers and
end-users utilize USB 3.0 though.

Intel is already looking
past USB 3.0 to an even faster method of transferring data and to and
from a computer that uses optical signals called Light
Peak. These optical cables will at first be used side-by-side in
machines with USB 3.0, though Intel does believe Light Peak is the
logical successor to USB 3.0.

Intel's Kevin Kahn said, "We
view this as a logical future successor to USB 3.0. In some sense
we'd... like to build the last cable you'll ever need."

The
most interesting feature of Light Peak is that the cable is capable
of supporting many protocols at the same time. For instance, the
single Light Peak optical cable can support USB and SATA
simultaneously. The cable also has enough bandwidth to stream a full
HD digital movie, a feed from a HD camera, and duplicate the desktop
of a laptop all at once.

A prototype laptop featuring Light
Peak was on display at a speech Kahn gave at IDF in Beijing. The
prototype used a USB 3.0 port with extra hardware to allow it to
detect optical transmissions. The port can also be connected to
standard USB 3.0 hardware as well.

Light Peak is capable of
transferring data at 10Gbps, enough bandwidth to stream a full-length
Blu-ray film in 30 seconds. Intel believes that the speed could be
upped to ten times that 10Gbps number in the next ten years. Light
Peak will be available late this year and partners will start
shipping devices using Light Peak next year.

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